Figure 3. .
T2-mapping cartilage assessment. A 32-year-old female runner with knee pain. (a) A focal area of signal intensity increase is identified (arrow) at trochlea on morphological axial FFE T2W sequence. (b) T2-mapping confirms a focal defect of signal with severe increase of T2 relaxation times at trochlear sulcus as well as early cartilage damage changes at superficial cartilage layer (white arrow), which not clearly seen on morphological sequence. FFE, fast field echo; T2W, T2 weighted.